CBSE Class 11 Biology Body Fluids and Circulation MCQs Set 01

Practice MCQs for Class 11 Biology Chapter 15 Body Fluids and Circulation

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Question : Blood pressure is measured by

a) sphygmomanometer

b) electrocardiogram

c) stethoscope

d) None of these

Answer : A

 

Question : Coronary artery disease (CAD) is often referred to as

a) Atherosclerosis

b) Heart failure

c) Cardiac arrest

d) None of these

Answer : A

 

Question : Which one of the following is a correct matching pair?

a) Lubb - Sharp closure of AV valves at the beginning of ventricular systole

b) Dup - Sudden opening of semilunar valves at the beginning of ventricular diastole.

c) Pulsation of the radial artery valves in the blood vessels

d) Purkinje fibers - Initiation of the heart beat

Answer : A

 

Question : Heart is covered by

a) Pericardium

b) Pleural membrane

c) Visceral membrane

d) None of these

Answer : A

 

Question : Pacemaker of heart is

a) SA node

b) AV node

c) Bundle of His

d) Purkinje fibres

Answer : A

 

Question : Uricotelism is found in

a) Fishes and fresh water protozoans

b) Birds, reptiles and insects

c) Mammals and birds

d) Frogs and toads

Answer : A

 

Question : Haemoglobin is having maximum affinity with

a) CO

b) O2

c) NH3

d) None of these

Answer : A

 

Question : An adult human with average health has systolic and diastolic pressures as

a) 120 mm Hg and 80 mm Hg

b) 50 mm Hg and 80 mm Hg

c) 70 mm Hg and 120 mm Hg

d) 80mm Hg and 80 mm Hg

Answer : A

 

Question : Blood group AB has

a) no antibody

b) no antigen

c) neither antigen nor antibody

d) both antigen and antibody

Answer : A

 

Question : With reference to the blood in a normal person, which one of the following statements is correct?

a) The blood has more platelets than WBC.

b) White blood cells (WBC) are made by lymph nodes only

c) Blood cells constitute about 70 percent of the total volume of the blood

d) Compared to arteries, veins are less numerous and hold less of the body’s blood at any given time.

Answer : A

 

Question : Thickening of arteries due to cholesterol deposition is

a) arteriosclerosis

b) blood pressure

c) rheumatic heart

d) cardiac arrest

Answer : A

 

Question : Hepatic portal system carries

a) Deoxygenated blood from intestine to live

b) Oxygenated blood from liver to intestine

c) Oxygenated blood from intestine to liver

d) Deoxygenated blood from liver to intestine

Answer : A

 

Question : Chordae tendinae are found in

a) ventricles of heart

b) atria of heart

c) joints of legs

d) ventricles of brain

Answer : A

 

Question : The pattern of contraction and relaxation of the heart is referred to as

a) cardiac cycle

b) arterial flow

c) blood pressure

d) blood flow

Answer : A

 

Question : The affinity of CO with Hb is more than oxygen by

a) 2000 times

b) 20 times

c) Both

d) None of these

Answer : A

 

Question : Life span of human RBCs is

a) 120 days

b) 9 days

c) 20 days

d) 90 days

Answer : 120 days

 

Question : Erythroblastosis foetalis occurs when

a) Mother is Rh negative and father is Rh positive

b) Father is Rh negative and mother is Rh positive

c) Both are Rh positive

Answer : A

 

Question : Which of the following set of animals has an incomplete double circulation system?

a) Toad and lizard

b) Shark and whale

c) Frog and crocodile

d) Lizard and pigeon

Answer : A

 

Question : Which of the following factors is known as Christmas factor?

a) Factor IX

b) Factor XII

c) Factor VIII

d) Factor IV

Answer : A

 

Question :  In veins, values are present to check backward flow to blood flowing at

a) low pressure

b) high pressure

c) atmospheric pressure

d) None of these

Answer : A

 

Question : Arteries carry oxygenated blood except
a) pulmonary
b) cardiac
c) hepatic
d) systemic
Answer: A
 
Question : Tricuspid valve is found in between 
a) sinus venosus and right auricle
b) right auricle and right ventricle
c) left ventricle and left auricle
d) ventricle and aorta
Answer: B
 
Question : Splenic artery arises from 
a) anterior mesenteric artery
b) coeliac artery
c) posterior mesenteric artery
d) intestinal artery
Answer: B
 
Question : A vein possesses a large lumen because
a) tunica media and tunica externa form a single coat
b) tunica interna and tunica media form a single coat
c) tunica interna, tunica media and tunica externa are thin
d) tunica media is a thin coat
Answer: D
 
Question : Carbonic anhydrase occurs in
a) lymphocytes
b) blood plasma
c) RBC
d) leucocytes
Answer: C
 
Question : Wall of blood capillary is formed of 
a) haemocytes
b) parietal cells
c) endothelial cells
d) oxyntic cells
Answer: C
 
Question : Cells formed in bone marrow include
a) RBC
b) RBC and leucocytes
c) leucocytes
d) lymphocytes
Answer: B
 
Question : Pacemaker of heart is 
a) AVnode
b) bundle of His
c) SA node
d) Purkinje fibres
Answer: C
 
Question : ‘Dup’ sound is produced during closure of
a) semilunar valves
b) bicuspid valve
c) tricuspid valve
d) Both b) and c)
Answer: A
 
Question : The lymph serves to 
a) transport oxygen to the brain
b) transport carbon dioxide to the lungs
c) return the interstitial fluid to the blood
d) return the WBCs and RBCs to the lymph nodes
Answer: C
 
Question : The blood cancer is known as 
a) leukemia
b) thrombosis
c) haemolysis
d) haemophilia
Answer: A
 
Question : Which one of the following statements about blood constituents and transport of respiratory gases is most accurate? 
a) RBCs transport oxygen whereas WBCs transport CO2
b) RBCs transport oxygen whereas plasma transports only CO2
c) RBCs as well as WBCs transport both oxygen and CO2
d) RBCs as well as plasma transport both oxygen and CO2
Answer: D
 
Question : Which one of the following vertebrate organs receives the oxygenated blood only? 
a) Gill
b) Lung
c) Liver 
d) Spleen
Answer: D
 
Question : An adult human with average health has systolic and diastolic pressures as
a) 80 mm Hg and 80 mm Hg
b) 70 mm Hg and 120 mm Hg
c) 120 mm Hg and 80 mm Hg
d) 50 mm Hg and 80 mm Hg
Answer: C
 
Question : Which of the following is not main function of lymph glands ?
a) Forming WBC
b) Forming antibodies
c) Forming RBC
d) Destroying bacteria
Answer: C
 
Question : Glucose is carried from digestive tract to liver by 
a) pulmonary vein
b) hepatic portal vein
c) hepatic artery
d) None of the above
Answer: B
 
Question : The antibodies are 
a) germs
b) carbohydrates
c) proteins
d) lipids
Answer: C
 
Question : The thickening of walls of arteries is called 
a) arthritis
b) atherosclerosis
c) aneurysm
d) Both a) and c)
Answer: B
 
Question : Pulmonary artery is different from pulmonary vein because it has
a) larger lumen
b) thick muscular walls
c) no endothelum
d) valves
Answer: B
 
Question : Which of the following statements is true for lymph? 
a) WBC and serum
b) All components of blood except RBCs and some proteins
c) RBCs, WBCs and plasma
d) RBCs, proteins and platelets
Answer: B
 
Question : What is true about T-lymphocytes in mammals ? 
a) They scavenge damaged cells and cellular debris
b) These are produced in thyroid
c) There are of three main types—cytotoxic T-cells, helper T-cells and suppressor Tcells
d) These originate in lymphoid tissues
Answer: C
 
Question : Systemic heart refers to 
a) enteric heart in lower vertebrates
b) the two ventricles together in humans
c) the heart that contracts under stimulation from nervous system
d) left auricle and left ventricle in higher vertebrates
Answer:A
 
Question : Bundle of His is a network of 
a) nerve fibres distributed in ventricles
b) nerve fibres found throughout the heart
c) muscle fibres distributed throughout the heart walls
d) muscle fibres found only in the ventricle wall
Answer: D
 
Question : Short-lived immunity acquired from mother to foetus across placenta or through mother’s milk to the infant is categorised as 
a) cellular immunity
b) innate non-specific immunity
c) active immunity
d) passive immunity
Answer: D
 
Question : Damage to thymus in a child may lead to 
a) a reduction in haemoglobin content of blood
b) a reduction in stem cell production
c) loss of antibody mediated immunity
d) loss of cell mediated immunity
Answer: D
 
Question : Which of the following substances, if introduce in the blood stream, would cause coagulation, at the site of its introduction ?
a) Fibrinogen
b) Prothrombin
c) Heparin 
d) Thromboplastin
Answer: D
 
Question : AIDS is caused by HIV that principally infects
a) all lymphocytes
b) activator B-cells
c) T4 lymphocytes
d) cytotoxic T-cells
Answer: C
 
Question : Examination of blood of a person suspected of having anaemia, shows large, immature, nucleated erythrocytes without haemoglobin.
Supplementing his diet with which of the following, is likely to alleviate his symptoms ?
a) Thiamine
b) Folic acid and cobalamin
c) Riboflavin
d) Iron compounds
Answer: B
 
Question : Antibodies in our body are complex
a) lipoproteins
b) steroids
c) prostaglandins
d) glycoproteins
Answer: D
 
Question : If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence ?
a) Serum albumins
b) Serum globulins
c) Fibrinogen in the plasma
d) Haemocytes
Answer: B
 
Question : In humans, blood passes from the post caval to the diastolic right atrium of heart due to 
a) pushing open of the venous valves
b) suction pull
c) stimulation of the sino auricular node
d) pressure difference between the post caval and atrium
Answer: D
 
Question : In a standard ECG which one of the following alphabets is the correct representation of the respective activity of the human heart?
a) T-end of diastole
b) P-depolarisation of the atria
c) R-repolarisation of ventricles
d) S-start of systole
Answer: B
 
Question : If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect? 
a) The flow of the blood into the aorta will be slowed down
b) The ‘pacemaker’ will stop working
c) The blood will tend to flow back into the left atrium
d) The flow of blood into the pulmonary artery will be reduced
Answer: D
 
Question : Fastest distribution of some injectible material/ medicine and with no risk of any kind can be achieved by injecting it into the
a) Arteries
b) Veins
c) Lymph vessesls
d) Muscles
Answer: B

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